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Stray Horse Mine

Past Producer in Broadwater county in Montana, United States with commodities Silver, Lead, Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10071332
MRDS ID W014664
Record type Site
Current site name Stray Horse Mine
Related records 10171881, 10173182

Geographic coordinates

Geographic coordinates: -111.69837, 46.40434 (WGS84)
Elevation 2039
Relative position ABOUT 17 KM NORTHWEST OF TOWNSEND

Site location context

Political divisions (FIPS codes)

Broadwater(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Winston(quadrangle 1:24,000 scale)

Townsend(quadrangle 1:100,000 scale)

White Sulphur Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Missouri(hydrologic unit)

Upper Missouri(hydrologic accounting unit)

Missouri-Marias(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Helena-Lewis and Clark National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Montana Broadwater

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008N 001W 35 Montana

Commodities

Commodity Importance
Silver Primary
Lead Primary
Gold Secondary

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Elkhorn Volcanics, Andesite;Little Olga Stock, Granodiorite
    Rock description Elkhorn Volcanics, Andesite;Little Olga Stock, Granodiorite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -111.69837, 46.40434
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith, Lombard Overthrust
Type of structure Local
Structure description Little Olga Stock, Series Of North-Trending Faults Offset Veins About 6 M

Ore body information

  • General form TABULAR
    Strike EAST
    Dip 80 N
    Length 500M
    Width 1M
    Depth to top 0M

Controls for ore emplacement

  • Deposit Is In North-Trending Zone Of Stocks

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1885

Mining district

District name Winston District

Ownership information

  • Type Operator
    Owner Louis Pevra, 1124 Sixth Ave, Helena, Mt
  • Type Owner
    Owner The Anaconda Co., Butte, Montana

Comments on the production information

  • REED (1951) STATES PRODUCTION PRIOR TO 1901 GREATER THAN $200,000 WITH LESS THAN 500 ST PRODUCED 1901-1942. EARLL (1964) STATES TOTAL PRODUCTION LESS THAN $250,000

Comments on the reserve resource information

  • EST. PRODUCTION 8000 ST ORE FROM ESTIMATED 50,000 ST MINERALIZED GROUND. MINING TO WEASEL CREEK LEVEL (250 FT) WOULD GIVE ESTIMATED 50,000 ST ORE AND 100,000 ST WASTE. GRADE ESTIMATED FROM USBM SAMPLES.

Workings at the site

  • Type of workings Underground
    Length 500M
    Overall depth 150M

Comments on the workings information

  • MINE EXPLORES TWO PARALLEL VEINS THROUGH A SERIES OF FIVE ADITS AND SEVERAL SMALL SHAFTS ALONG THE VEINS

Reference information

Bibliographic references

  • Deposit

    EARLL, F. N., 1964, ECONOMIC GEOLOGY AND GEOCHEMICAL STUDY OF WINSTON MINING DISTRICT, BROADWATER CO., MONTANA: MONT. BUREAU MINES GEOL. BULL. 41

  • Deposit

    REED, G. C., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS), BROADWATER CO., MONTANA: U.S. BUREAU OF MINES INF. CIRC. 7592

  • Production

    PRODUCTION ESTIMATED FROM DOLLAR VALUE OF ORE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1976 Krohn, Douglas H. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site